Silverlight 4001 error

Player will load but reports error 4001 "could not open media file"

This only happens on PC running Win7 64-bit with IE 8 32-bit

I can launch the wmv directly from the path..say...http://www.mydomain.com/silverlightvideos/alpha.wmv

But silverlight gives the above error...

....please help
LVL 14
BigBadWolf_000Asked:
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*** Hopeleonie ***IT ManagerCommented:
Is the source URL valid?
Can you post the Website link?
0
*** Hopeleonie ***IT ManagerCommented:
http://www.mydomain.com/silverlightvideos/alpha.wmv

get the error :
404
Page not Found
You will be redirected to the home page momentarily
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BigBadWolf_000Author Commented:
That was just an example. Problem is not with the site or link....I can view the video through Silverlight ok in Windows XP and other Windows 7 64-bit (with IE8 32-bit) PCs.
Its just this one PC with Win7-64..However it works if I disable UAC.
But on the other PCs it works with UAC enabled

I have Zonealarm installed on the PC with the problem, but when I disable ZA it still wont work. I will try uninsatiing ZA and see i it helps
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*** Hopeleonie ***IT ManagerCommented:
Yes maybe Zonealarm.
When you still have problems reset the IE (or Browser) settings.

Had the same issue ones.

Good luck
Leonie
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BigBadWolf_000Author Commented:
Uninstalled ZA. Problem still exists. But when I disable UAC then it will play. I think its an issue to where it caches the file and UAC does not give it access since I have moved several data and cache folders to another drive. I guess for now I will work with it with UAC disabled and ZA Enabled :)

Thanks for your response.
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BigBadWolf_000Author Commented:
I dont believe this can be resolved without me putting all Windows data/cache/temp settings back to their default locations. I am awarding Leonie points cause I feel resetting IE settings to default is part of the Windows reset.
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*** Hopeleonie ***IT ManagerCommented:
Thanks BigBadWolf_000
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